registry.getSubkeys(WindowsRegistry.Key.HKEY_LOCAL_MACHINE, _) >> { throw new MissingRegistryEntryException() }
        def supplier = createSupplier()

        when:
        def locations = supplier.get()

        then:
        locations*.location.path.containsAll("c:\\jdk8", "d:\\jdk9", "c:\\jdk17", "d:\\jdk11", "c:\\jdk15", "d:\\jdk16")

                                <toolchain>
                                <type>jdk</type>
                                <configuration>
                                <jdkHome>${env.JDK16}</jdkHome>
                                </configuration>
                                </toolchain>
                                <toolchain>
                                <type>jdk</type>

            return javaVersion >= JavaVersion.VERSION_1_8 && javaVersion <= JavaVersion.VERSION_14
        }

        // 7.0 added official support for JDK16
        // milestone 2 was published with Groovy 3 upgrade and without asm upgrade yet
        // subsequent milestones and RCs will support JDK16
        if (isSameOrOlder("7.0-milestone-2")) {
            return javaVersion >= JavaVersion.VERSION_1_8 && javaVersion <= JavaVersion.VERSION_15

            }
            """

        when:
        succeeds 'tar'

        then:
        file("build/test.tar.${compression}").md5Hash == md5

        // Reason for different gzip checksum on JDK16: https://jdk.java.net/16/release-notes#JDK-8244706
        where:
        compression | md5

     | Language Version:   15
     | Vendor:             AdoptOpenJDK
     | Architecture:       x86_64
     | Is JDK:             true
     | Detected by:        environment variable 'JDK16'

 + Oracle JDK 1.7.0_80
     | Location:           /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home/jre
     | Language Version:   7
     | Vendor:             Oracle
     | Architecture:       x86_64